/**
 * Created by Yu Jin Xian on 2016/9/14.
 */
// 关键字
/**
 * bread        do          instanceof  typeof
 * case         else        new         var
 * catch        finally     return      void
 * continue     for         switch      while
 * debugger*    function    this        with
 * default      if          throw
 * delete       in          try
 */

// 保留字
/**
 * abstract     enum        int         short
 * boolean      export      interface   static
 * byte         extends     long        super
 * char         final       native      synchronized
 * class        float       package     throws
 * const        goto        private     transient
 * debugger     implements  protected   volatile
 * double       import      public
 */

// 第5版非严格模式
/**
 * class        enum        extends     super
 * const        export      import
 */

// 第5版严格模式
/**
 * implements   package     public
 * interface    private     static
 * let          protected   yield
 */